Waste receptacle



May 5, 1931. J. DOUGLAS WASTE RECEPTACLE Filed Jan. 29, 1930 gwuwfloz Jain Dag law a Hot u up Patented May 5, 1931 UNITED STATES PATENT OFFICE JOHN DOUGLAS, OF PENSACOLA, FLORIDA, ASSIGNOR TO THE JOHN DOUGLAS COM- PANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO WASTE RECEPTACLE An object of this invention is to provide simple and efiicacious means for precluding contamination of a water supply incident to servicing of flush bowls and the like.

Another object is to provide means for the indicated purpose, that will not require any changes in Various plumbing regulations and specifications that may be used in various localities.

These and other objects are attained by the means described herein and disclosed in the accompanying drawing in which Figure 1 shows, partly in section, a commonly employed plumbing arrangement for flush bowls.

The flush bowl 5 may be of any of the various types or forms used in this art. The water supply pipe is shown at 6, and a shutoff valve 7 is included in the water pipe or line. It is common for the valves such as 7 to have a drain opening 8 or suitable connection, so that upon shutting off of the water supply at valve 7, the water in the pipe 6, above the valve 7 is drained from the pipe. At 9 is shown an obstruction in the discharge duct 10 of the bowl. If the flush valve 11 should be operated at such time that an obstruction such as 9 is present, the bowl will fill with water, and in some instances overflow the bowl. If thereafter,- the valve 7 should be operated to shut off the water-supply, as is commonly done, when repairs are to be made, the resultant syphonic action causes the polluted contents of the bowl to pass through the flush valve 11, and pipe 6 and drain 8 of valve 7. Some of the filth may adhere to the inner walls of the valves and pipe with the result'that after repairs are made and the valve 7 is opened, such filth may be trapped in the watersupply line and may find its way into other pi es and maybe discharged from drinking ounts, or hydrants from which drinking water is ordinarily drawn.

All of the foregoing unsanitary possibilities are obviated by this invention.

The flush bowl 5 is provided with one. 01

more ducts or openings 12 at such a place that the bowl 5 will discharge before its contents reach the openings 13, leading from the hollow rim 14, and into which hollow rim some of the flush water is introduced in normal operation of the flush bowl. If the water in the bowl should reach the openings 13, the subsequent closing of valve 7 would initiat( syphonic action.

The openings such as 12 are preferably inclined upwardly, and have their lower termini at the inner side or face of the bowl and have their upper termini at the outer side or face of the bowl wall, so that innormal operation, there is no discharge from the bowl, by way of the openings or parts 12.

It is to be understood that normally the height of the water in the bowl is deter mined by the top of the wall section 15, and that the ports 12 shall be above such normal water line or level.

Although the invention is shown as applied to such flush structures as'are generally illus' trated in the patents to Deignon et 'al. 1,119,812, the invention'is applicable to other types of plumbing, wherein the same problem is met, for example in Haas 1,117,747, Teahen et a1. 1,570,324, Schuh 1,134,914 and others.

Fig. 2 shows a modified form of the invention, which, in view of the explanation giyen relative F ig. 1, needs no further explanation.

What is claimed is:

1. As a new article of manufacture, a flush bowl having a rim, a fluid inlet, a discharge duct, and means for establishing at normal water level in the bowl below the rim, and having an overflow port between the rim and the normal water level, said overflow port being entirely independent of communication with the discharge duct and disposed for conveying overflow fluid before the level thereof.

reaches the fluid inlet.

2. As a new article of manufacture, a flush bowl having a rim, a discharge duct, and

means for establishing a normal water level 3. As a new article of manufacture, a

waste receptacle comprising a drain duct, a rim at its top, and means for admitting fluid to the receptacle, and having an overflow port in its wall, said overflow port being in communication with the outside of the waste receptacle and inclined downwardly and inwardly of the receptacle to permit fluid to gravitate thereover without entering, said overflow port being located above the drain duct and below the rim and fluid admitting portions thereof.

4. The combination of a receptacle comprising a perforate wall and having a hollow rim provided with ports discharging into the receptacle, a discharge duct including means for establishing a normal fluid level in the receptacle for sealing the discharge duct, a water line discharging into the hollow rim and into the receptacle, a shut-off valve in said water line and a flush valve between the shut-oif valve and the receptacle, the perforate portion of the receptacle wall being disposed at such elevation relative the normal fluid level, a hollow rim and the place of discharge from the flush valve and water line into said receptacle that under normal conditions there will be no overflow through the receptaclewall and that under abnormal conditions, the rise of the water level cannot attain the elevations of the hollow rim and/or of the place of discharge of the water line into the receptacle.

5. The combination of a receptacle com- 1 prising a perforate wall and an inlet discharging into the receptacle, a discharge duct including means for establishing a normal fluid level in the receptacle for sealing the discharge duct, a waterline discharging into the inlet of the receptacle, a shut-off valve in the water line located below the receptacle said valve having a'means for draining the water line to the receptacle inlet, and a flush valve in the water line between the inlet and the shut-off valve, the perforate portionof the receptacle wall being disposed at such elevation relative to the normal fluid level and the receptacle inlet that under normal conditions there will be no overflow through the perforation in the wall of the receptacle, but

under abnormal conditions the rise of the water level causes the water to flow through the receptacle perforation to the exterior of the receptacle rather than to the level of the fluid inlet.

6. As a new article of manufacture, a perforate flush bowl having a fluid inlet and a discharge duct, the perforation in the flush bowl being dis osed intermediate the fluid inlet and the discharge duct for preventing the fluid from rising 1n the bowl to the level of the fluid inlet, upon stoppage of the discharge duct, b conveying the raised fluid to the exterior o the flush bowl.

a new article of manufacture, a perforate flush bowl having a fluid inlet and JOHN DOUGLAS. 

